Harrow



(No Model.)

A. T. VAN SLYKB. HARROW.

Patented July 30, 1889. Q g

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ARVIL TALLES VAN SLYKE, OF HERMITAGE, NEW YORK.

HARROW.

SPECIFICATION forming part of Letters Patent No. 407,846, dated July 30, 1889.

Application filed September 28, 1838- $erial No. 286,657. (No model.) I

To all whom it may concern.-

Be it known that I, ARVIL TALLES VAN SLYKE, a citizen of the United States, residing at Hermitage, in the county of \Vyoming and State of New York, have invented certain new and 'nseful Improvements in Harrows; and I do declare the following to be-a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same,

reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to harrows which have the frame that supports the tooth-bars supported on wheels, and which have the tooth-bars j ournaled at their ends in the frame, so that by turning the said tooth-bars about their journals the pitch of the teeth can be varied and the teeth can be adjusted to harrow deep or shallow or raised from the ground entirely.

The primary object of this invention is to provide a simple, compact, efficient, and reliable means for simultaneously turning the tooth-bars about their journals, that can be conveniently operated, and which will admit of power being applied to positively move the teeth in the desired direction.

A further object of the invention is to devise a spring-standard for the teeth that can be cheaply made from stout wire, which will be capable of yielding in all directions to avoid obstructions, and which will be sufficiently rigid in the direction ofmotion of the machine to perform its work in a satisfactory manner.

A still further object of the invention is to remove all extraneous weight from the harrow-frame by supporting the tooth-bar-operating devices, the rest, and the pole directly on the axle from which the said barrow-frame is suspended.

The improvement consists in the novel features which will be hereinafter more fully described, and shown in the accompanying drawings, in which I Figure 1 is a plan View of a wheel-harrow embodying my improvements. Fig. 2 is a longitudinal section of the same. Fig. 3 is a detail view of the lower end of the standards, showing the manner of securing the teeth thereto.

The barrow-frame, composed of the side bars A and the end bars A and A is supported on the axle B by the plates 0, which are secured to the said side bars A, midwayof their ends, and have the axle passing through their upper ends. On the ends of the axle are the supporting-wheels b. The tooth-bars D, parallel with one another and with the end bars of the frame, are journaled at their ends in the side bars A of the frame, and are held from longitudinal displacement by the transverse pins d. The journals of the middle tooth -bars extend through the plates 0, and are provided with transverse pins (1, which bear against and hold the said plates 0 from coming off the said journals and against the side bars of the frame. This construction does very well for small harrows, but for large harrows the plates 0 will have to be secured to the said side barsA by other means. Each of the t00th-bars D is provided with an arm e, which is loosely connected at its upper end with the operating-bar E. The vertical shaft F, having the crank f at its upper end,is journaled at its lower end in the step or plate f, which is secured to the axle and has a bearing near its upper end in the plate G, that is braced by the rods g. The pinion H on the shaft F meshes with the rack 7L on the bar E. By rotating the shaft F the bar E will be moved back and forth through the rack and pinion, and the bars D will be turned on their journals by reason of their connection with the said bar E.

The standards I are C-shaped, and are composed of two rods or Wires o' o', which areseparated at their upper ends, which ends are secured to the bars D and have their lower ends brought close together, the blades t" being secured to the said lower ends in any desiredmanner, but preferably by the bolts '9. It is preferred to form the standards of, a single rod or wire, which is bent on itself at its middle, the endsbeing bent symmetrically, substantially in the shape shown. The upper ends of the standards pass vertically through the bars,D,' and come up, over, and down in the rear thereof.

The pole J is composed of two members, which are united at their front ends and are separated at their rear ends, which ends are connected with the axle B. The front end of the frame has connection with the pole through the standards j, which are united at their upper ends by the cross-bar j, to which the doubletree K, having the singletrees k at its ends, is attached.

The seat-bars L, which extend rearwardly, are attached at their lower ends to the axle, preferably by the same bolts which secure the pole to the axle, and are re-enforced by the springs M, which have their lower ends fastened to the axle and curve downwardly between their ends, and which have their free ends bearing upward against the said seatbars.

The operation of the machine will be readily comprehended from the foregoing description, and a further description of such operation in this connection is deemed unnecessary.

What I claim as new is The combination. with' the barrow-frame and the tooth-bars D, journaled in the said frame, of the operating racked bar E, parallel with the side bars of the frame, the arms 6,-

ARVIL TALLES VAN SLYKE.

Witnesses:

H. F. PAGE, J. T. PEoK. 

